Quest for Ula's Temple is a rare Enchantment card from Worldwake (WWK), collector number 35. Current market price: $4.75 (foil $39.25), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, you may look at the top card of your library. If it's a creature card, you may reveal it and put a quest counter on this enchantment. At the beginning of each end step, if there are three or more quest counters on this enchantment, you may put a Kraken, Leviathan, Octopus, or Serpent creature card from your hand onto the battlefield.